Discuss TNCS PME on caravan site with static caravan EICR in the Electrical Forum area at ElectriciansForums.net

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hi all i was just in the middle of doing an eicr on a caravan park and wanted some opinions on what codes are relevant to the site.

ive got tncs pme 100a 3 phase. each phase feeds a db like in the picture by a 100a main switch and 63 amp mcb and 10mm pyro (earthed with bonding clamp) which in turn feeds a static caravan by i think is 60898? 20a mcb (but could do with second opinion as im not as old as the mcbs) and 2.5 2 core swa connected directly to static home consumer unit again some earthed by bonding clamp at distribution board. no bonding at all to the chassis and no rcd except inside each static home

20180119_132736.jpg - https://drive.google.com/open?id=0BywXO5AAQnhsQkhwT002Q0NmdEpDUktXR01RVzhzZGxSVnZJ


all earth at the moment is exported from met tncs im thinking....


exported earth - c2
no rcd to each static home - c2
earth clamps on the swa c2 ( some are failing due to corrosion )
earth clamps on the pyro - c3
no extraneous bonding - c2
no earth at metal meters - c2

also these are not all defects just ones i was hoping for opinions on



ANNNDD... OPINIONS.... (plus abuse mildly welcomed !)
 
They are type 4 Federal Electric devices and you need manufacturers data to compare Zs values. Sounds like you are out of your depth on this.
 
They are type 4 Federal Electric devices and you need manufacturers data to compare Zs values. Sounds like you are out of your depth on this.
To be fair I am a bit as I haven't done much work on caravan parks and this is first eicr on one
yeah, and a c1 for the water table in the utility cupboard!

As said there's more defects. I'd say c2. But it is being sorted over weekend
 
From your pic and what you are saying it sounds an appalling installation and you need to be very conversant with the requirements to compile a concise and factual Report. Do you have GN8.
 
From your pic and what you are saying it sounds an appalling installation and you need to be very conversant with the requirements to compile a concise and factual Report. Do you have GN8.
I do, been going through all night. And along with volt drop water ingress, max zs, corrosion and bad insulation, the main points I made in the post was the ones I was hoping people had the same thoughts or if different to share and elaborate
 

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